Phaeodaria are single-celled eukaryotes (a.k.a. protists) belonging to the supergroup Rhizaria. Like diatoms, phaeodarians build up skeletons made of opaline silica, but unlike their emblematic relatives, phaeodarians have been largely ignored in the marine silica cycle. In a recent study published in Global Biogeochemical Cycles (also see related Research Spotlight in AGU Eos), authors used […]